CN214954193U - Double-shaft emergent angle backlight module - Google Patents
Double-shaft emergent angle backlight module Download PDFInfo
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- CN214954193U CN214954193U CN202120841789.9U CN202120841789U CN214954193U CN 214954193 U CN214954193 U CN 214954193U CN 202120841789 U CN202120841789 U CN 202120841789U CN 214954193 U CN214954193 U CN 214954193U
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Abstract
The utility model discloses a biax goes out angle backlight unit, include: the backlight module comprises a first light guide plate, a first light source and an inverse prism, wherein the first light guide plate is provided with a first light emitting surface, a first light guiding surface and a first light incident surface, the first light emitting surface and the first light guiding surface are opposite, the first light incident surface is connected between the first light emitting surface and the first light guiding surface, and the first light source is arranged on the first light incident surface; the inverse prism is positioned at the top of the first light guide plate and is provided with a prism light-emitting surface and a plurality of arranged prism units opposite to the prism light-emitting surface, and the prism units are arranged right opposite to the first light-emitting surface. The utility model relates to a biax jets out angle backlight unit makes light can send according to specific required angle, realizes biax and jets out the angle, through switching the signal of telecommunication, lights one of them light source or two light sources all light, and then realizes that display device can single squint angle watch the development that picture or two squint angles watched different pictures, uses for the user and brings the convenience.
Description
Technical Field
The utility model relates to a backlight unit technical field, in particular to biax goes out angle backlight unit.
Background
The backlight module is one of the key components of the display device, and has the function of supplying sufficient light sources with uniform brightness and distribution, so that the backlight module can normally display images. The existing backlight module comprises a side-in type backlight module and a direct type backlight module, and the side-in type backlight module is more widely applied due to the lighter and thinner structure.
At present, light emitted from a light source of a side-entry backlight module enters a light guide plate, is guided into the whole light guide plate, is refracted by a light exit surface of the light guide plate, and then is emitted through an optical film above the light guide plate. Although the existing backlight module can form the surface light source required by the display device, the existing backlight module has certain disadvantages: the light emitted by the light source is finally diffused towards all angles, exists from the emitting surface towards all directions, and is combined on the display device, so that a uniform picture can be seen from all angles, the light can not be emitted from a specific required angle, namely, the requirements that the display device can only see the picture at the specific required angle and the picture can not be seen at other angles can not be met, and further the function that the same display device can display different pictures according to different viewing angles can not be realized.
Disclosure of Invention
The utility model aims to solve the problem that a biax goes out angle backlight unit is provided to overcome prior art backlight unit and can't realize letting the purpose that light sent from specific required angle.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a dual-axis exit-angle backlight module, comprising: the backlight module comprises a first light guide plate, a first light source and an inverse prism, wherein the first light guide plate is provided with a first light emitting surface, a first light guiding surface and a first light incident surface, the first light emitting surface and the first light guiding surface are opposite, the first light incident surface is connected between the first light emitting surface and the first light guiding surface, and the first light source is arranged on the first light incident surface; the inverse prism is positioned at the top of the first light guide plate and is provided with a prism light-emitting surface and a plurality of arranged prism units opposite to the prism light-emitting surface, and the prism units are arranged right opposite to the first light-emitting surface; the prism unit has a first surface and a second surface on both sides thereof, and an included angle formed between the first surface and the second surface is theta 1, and theta 1 is 50 DEG or more and 60 DEG or less.
As a further improvement of the present invention, be provided with first microstructure on the first light guiding surface, first microstructure has the first inclined plane of a plurality of arrangements, first inclined plane is kept away from the one end orientation of first light source the slope of first plain noodles, the extending direction that first inclined plane was arranged with the extending direction that the prism unit was arranged is the same.
As a further improvement, the first light emitting surface is provided with a first lens array structure, and the first lens array structure is a plurality of arranged columns or cone structures.
As a further improvement, the critical angle that the total reflection took place for first light guide plate is theta 2, the light that first light source launched is through first income plain noodles refraction gets into in the first light guide plate, and take place the total reflection in the first light guide plate, until the first incident angle of light on first play plain noodles is less than or equal to theta 2 after, by first play plain noodles refraction jets out, passes through inverse prism unit refraction and by prism play plain noodles jets out and forms first light distribution, first light distribution orientation first light source direction beat, with the perpendicular line on prism play plain noodles is the benchmark, and first light distribution has the distribution angle and is less than or equal to theta 3 and less than or equal to 35 first crest.
As a further improvement of the utility model, still including being located the second light guide plate and the second light source of first light guide plate bottom, the second light guide plate has relative second and goes out plain noodles and second leaded light face and connect the second go out the plain noodles with second between the second leaded light face goes into the plain noodles, the second goes out the plain noodles just right first leaded light face sets up, the second light source configuration is in on the second goes into the plain noodles, and first light source with the second light source is located respectively backlight unit relative both sides end.
As a further improvement, the critical angle that the total reflection takes place for the second light guide plate is theta 4, the light that the second light source launched is through the refraction entering of second income plain noodles in the second light guide plate, and take place the total reflection in the second light guide plate, after until the second incident angle of light on the second goes out the plain noodles is less than or equal to theta 4, by the refraction of second play plain noodles is jetted out, passes through in proper order again first light guide plate with inverse prism the prism unit refraction back, by the formation second light distribution is jetted out on the prism play plain noodles, the second light distributes and faces second light source direction beat, with the perpendicular line of prism play plain noodles is the benchmark, and second light distribution has the second crest that distribution angle is-35 theta 5 is less than or equal to-15.
As a further improvement, the second light guide surface is provided with a second microstructure, the second microstructure has a plurality of second inclined planes of arranging, the second inclined plane is kept away from the one end orientation of second light source the slope of second play plain noodles.
As a further improvement of the present invention, the extending direction of the second inclined plane arrangement is the same as the extending direction of the prism unit arrangement.
As a further improvement, the second light emitting surface is provided with a second lens array structure, and the second lens array structure is a plurality of arranged columns or cone structures.
As a further improvement of the utility model, still include the reflector plate, the reflector plate configuration is in on the second leaded light face.
The utility model has the advantages that: the utility model provides a double-shaft emergent angle backlight module, which is characterized in that a reverse prism is arranged at the top of a first light guide plate, and light emitted by a first light source can be emitted according to a specific required angle after being refracted and emergent by the first light guide plate and the reverse prism in sequence, so that the emergent angle is concentrated in the angle range; meanwhile, the second light guide plate is arranged at the bottom of the first light guide plate, light emitted by the second light source sequentially passes through the second light guide plate, the first light guide plate and the inverse prism to be refracted and emitted, and then can be emitted according to another specific required angle, so that the light emission angle is concentrated in the angle range, a double-axis emission angle is realized, one light source can be lightened or two light sources can be lightened by switching electric signals according to actual requirements, and further, the display device can be developed for watching pictures at a single oblique viewing angle or watching different pictures at double oblique viewing angles, convenience is brought to users, and the display device has a very good application prospect.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a partial schematic structural view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
fig. 4 is a left side view of the present invention;
fig. 5 is a schematic diagram of a path of light emitted by the first light source according to the present invention;
fig. 6 is a schematic diagram of a path of light emitted by the second light source according to the present invention.
The following description is made with reference to the accompanying drawings:
1-a first light guide plate; 101-a first light emitting surface;
102-first light guide surface; 1021 — a first slope;
103-first incident surface; 2-a first light source;
3-inverse prism; 301-prism exit surface;
302-prism unit; 4-a second light guide plate;
401 — second light emitting surface; 402-second light guide surface;
4021-second bevel; 403-second incident surface;
5-a second light source; 6-reflecting sheet.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.
Referring to fig. 1 to 6, the present invention provides a dual-axis output backlight module, including: the backlight module comprises a first light guide plate 1, a first light source 2 and a reverse prism 3, wherein the first light guide plate 1 is provided with a first light emitting surface 101 and a first light guiding surface 102 which are opposite to each other, and a first light incident surface 103 connected between the first light emitting surface 101 and the first light guiding surface 102, and the first light source 2 is arranged on the first light incident surface 103; the inverse prism 3 is positioned at the top of the first light guide plate 1 and is provided with a prism light-emitting surface 301 and a plurality of arranged prism units 302 opposite to the prism light-emitting surface 301, and the prism units 302 are arranged opposite to the first light-emitting surface 101; both sides of the prism unit 302 have a first surface and a second surface, and an included angle formed between the first surface and the second surface is θ 1, and θ 1 is 50 ° or more and 60 ° or less.
The first light guide plate 1 is a mirror reflection type light guide plate, the first light guide plate 1 may be made of a transparent resin material, a PMMA (Polymethyl methacrylate) material, an optical material COP, a COC (copolymer of cyclic olefin copolymer) material, an optical grade PC (polycarbonate) material, or the like, and in this embodiment, the first light guide plate 1 is made of a PC material. The critical angle of the first light guide plate 1 for total reflection is θ 2, and the critical angle of total reflection is different according to the characteristics of different materials, and is expressed as:
and the refractive index of the PC material is n11.58, refractive index of air n2The critical angle θ 2 of the first light guide plate 1 was calculated to be 39.2 °. After the light emitted from the first light source 2 is refracted by the first light incident surface 103 and enters the first light guide plate 1, the light with the incident angle exceeding 39.2 ° is totally reflected and propagates inside the first light guide plate 1, and when the incident angle is lower than the critical angle of 39.2 °, the light can be refracted to the outside through the first light emitting surface 101.
Referring to fig. 2 and 3, the first light guide surface 102 is provided with a first microstructure, the first microstructure has a plurality of first inclined surfaces 1021, and one end of the first inclined surfaces 1021 far away from the first light source 2 is inclined toward the first light emitting surface 101. The light emitted from the first light source 2 and entering the first light guide plate 1 is totally reflected on the first inclined surface 1021, so that the incident angle of the light is continuously reduced until the incident angle of the light on the first light emitting surface 101 is smaller than or equal to the critical angle θ 2, and then the light is refracted out from the first light emitting surface 101. In addition, the included angle between the first inclined surface 1021 and the horizontal plane is θ 6, and the time for the light to reach the critical angle θ 2 can be adjusted by changing the size of θ 6, and θ 6 is set to 2 ° in this embodiment.
For ease of understanding, the upper, lower, left, and right with reference to fig. 1 are defined as an upper side, a lower side, a left side, and a right side, respectively, with respect to the side of fig. 1, a front side, and a side opposite to the front side, a rear side. The first light source 2 and the first inclined surface 1021 have a certain position corresponding relationship, in this embodiment, the first light source 2 is located on the first light incident surface 103 on the right side of the first light guide plate 1, and when the position of the first light source 2 is located at a different first light incident surface 103 of the first light guide plate 1, the first inclined surface 1021 should be correspondingly adjusted to correspond to the first light source 2, that is, it is required to satisfy that one end of the first inclined surface 1021, which is far away from the first light source 2, inclines toward the first light emitting surface 101.
Referring to fig. 2, each prism unit 302 is arranged in a front-rear direction, an extending direction in which the plurality of prism units 302 are arranged is a left-right direction, and an extending direction in which the first inclined surfaces 1021 are arranged is the same as the extending direction in which the prism units 302 are arranged. The critical angle θ 2 of the PC material used for the first light guide plate 1 according to the present embodiment is 39.2 °, and the critical angle θ 1 of the present embodiment is preferably set to 52 °. When the first light source 2 is turned on, light emitted by the first light source 2 is refracted by the first light incident surface 103 and enters the first light guide plate 1, and is totally reflected in the first light guide plate 1 and continuously approaches the critical angle θ 2 until the first incident angle of the light on the first light emitting surface 101 is smaller than or equal to θ 2, the light is refracted by the first light emitting surface 101 and then is refracted by the prism unit 302 of the inverse prism 3 and then is emitted by the prism light emitting surface 301 to form first light distribution. According to snell's law:
sinθ1*n1＝sinθ2*n2
wherein n is2Is the refractive index of air, n1As the refractive index of the medium, it can be found that the first light distribution deflects toward the first light source 2, i.e. light is refracted out from the right side of the normal on the prism light-emitting surface 301, and the first light distribution has a first peak with a distribution angle θ 3 of 15 ° or more and 35 ° or less, i.e. the light intensity is maximum within an angle range of 15 ° to 35 ° with reference to the vertical line perpendicular to the prism light-emitting surface 301. By adopting the technical scheme, the first light source 2 is lightened to emit light from a specific required angle, the light emitting angle is concentrated at 15-35 degrees, and the display device can be enabled to be capable ofThe picture display can be seen from the oblique visual angle of the right side of the vertical line within 15-35 degrees, and the requirements of users are met.
Referring to fig. 4, the first light emitting surface 101 is provided with a first lens array structure, which is a plurality of arranged cylindrical or conical structures, and the arrangement mode of the first lens array structure may be continuous or spaced. In this embodiment, the first lens array structure adopts continuously arranged cylindrical structures, the independent cylindrical structures are all arranged along the left-right direction, the extending direction of the arrangement of the plurality of cylindrical structures is the front-back direction, and the extending direction of the arrangement of the plurality of cylindrical structures is perpendicular to the extending direction of the arrangement of the prism units 302. The first lens array structure can gather light in the front and rear side directions, and the main purpose of the first lens array structure is to enable the light to be gathered at the center as much as possible when the first lens array structure is used for vehicle-mounted central control, so that the influence of light reflection on a windshield on sight can be effectively avoided.
Referring to fig. 5, for example, after the light enters the first light guide plate 1 through the first light incident surface 103 at a refraction angle of 27 °, the light reaches the first light guide surface 102 and is totally reflected at a reflection angle of 58 °, until the light reaches 38 ° on the first light emitting surface 101 and is refracted out at a refraction angle of 75 °, and then is refracted by the prism unit 302 of the inverse prism 3 and finally exits through the prism light emitting surface 301 at a refraction angle of 31 °.
Referring to fig. 1 and 2, the dual-axis output backlight module further includes a second light guide plate 4 located at the bottom of the first light guide plate 1, a second light source 5 and a reflector 6 located at the bottom of the second light guide plate, the second light guide plate 4 has a second light emitting surface 401 and a second light guiding surface 402 opposite to each other, and a second light incident surface 403 connected between the second light emitting surface 401 and the second light guiding surface 402, the second light emitting surface 401 is disposed opposite to the first light guiding surface 102, the second light source 5 is disposed on the second light incident surface 403, and the first light source 2 and the second light source 5 are respectively located at two opposite side ends of the backlight module, that is, the second light source 5 is located on the second light incident surface 403 on the left side of the second light guide plate 4 in this embodiment.
The second light guide plate 4 is a mirror reflection type light guide plate, and the material thereof may also be a transparent resin material, a PMMA material, an optical material COP, a COC material, an optical grade PC material, or the like, and in this embodiment, the second light guide plate 4 is made of a PC material. The critical angle of total reflection of the second light guide plate 4 is θ 4, and θ 4 is 39.2 °. After the light emitted from the second light source 5 is refracted by the second light incident surface 403 and enters the second light guide plate 4, the light with the incident angle exceeding 39.2 ° is totally reflected and propagates inside the second light guide plate 4, and when the incident angle is lower than the critical angle of 39.2 °, the light can be refracted to the outside through the second light emitting surface 401.
Referring to fig. 2 and 3, a second microstructure is disposed on the second light guiding surface 402, the second microstructure has a plurality of second inclined surfaces 4021 arranged, one end of the second inclined surfaces 4021 away from the second light source 5 is inclined toward the second light emitting surface 401, and the extending direction of the second inclined surfaces 4021 is the same as the extending direction of the prism units 302. The light emitted from the second light source 5 and entering the second light guide plate 4 is totally reflected on the second inclined surface 4021, so that the incident angle of the light is continuously reduced until the incident angle of the light on the second light emitting surface 401 is less than or equal to the critical angle θ 4, and then the light is refracted out from the second light emitting surface 401. In addition, the angle between the second inclined surface 4021 and the horizontal plane is θ 7, the time for light to reach the critical angle θ 4 can be adjusted by changing the size of θ 7, and θ 7 is set to be 4 ° in this embodiment.
When the second light source 5 is turned on, the light emitted from the second light source 5 is refracted by the second light incident surface 403 and enters the second light guide plate 4, and totally reflected in the second light guide plate 4 until the second incident angle of the light on the second light emitting surface 401 is smaller than or equal to θ 4, is refracted and emitted from the second light emitting surface 401, and then is refracted by the prism units 302 of the first light guide plate 1 and the inverse prism 3 in sequence, and then is emitted from the prism light emitting surface 301 to form a second light distribution, according to snell's law, the second light distribution is deflected in the direction of the second light source 5, namely, the light is refracted out from the left side of the normal on the prism light-emitting surface 301, and the second light distribution has a second peak with a distribution angle theta 5 not more than-15 degrees, namely, the light intensity is maximum in the angle range of-35 degrees to-15 degrees, with the vertical line perpendicular to the prism light-emitting surface 301 as the reference. The negative value of the second light distribution angle is expressed relative to the first light distribution angle. By adopting the technical scheme, the second light source 5 is lightened to emit light from a specific required angle, the light emitting angle is concentrated between minus 35 degrees and minus 15 degrees, and the display device can see the picture display from the left oblique angle of the vertical line within minus 35 degrees to minus 15 degrees.
The second light emitting surface 401 is provided with a second lens array structure, which is a plurality of arranged cylindrical or conical structures, and the second lens array structure is the same as the first lens array structure in this embodiment, and is not repeated here.
Although the reflective sheet 6 is disposed on the second light guide surface 402 and 3M ESRSeries is used as the reflective sheet 9, the reflective sheet 9 is not limited thereto, and any medium having reflective properties may be used as the reflective sheet 9.
Referring to fig. 6, for example, after the light enters the second light guide plate 4 through the second light incident surface 403 at a refraction angle of 24 °, the light reaches the second light guide surface 402 and is totally reflected at a reflection angle of 61 °, and the light is refracted out at the second light emitting surface 401 until the incident angle reaches 34 °, enters the first light guide plate 1, exits from the first light guide plate 1 at a refraction angle of 69 °, is refracted by the prism unit 302 of the inverse prism 3, and finally exits from the prism light emitting surface 301 at a refraction angle of-28 °.
In this embodiment, by controlling the switching of the electrical signals, the first light source 2 and the second light source 5 can be simultaneously turned on, the light distribution is the superposition of the first light source 2 and the second light source 5 which are independently turned on, so that the lights emitted by the first light source 2 and the second light source 5 are respectively emitted from two specific required angles, the light emitting angles are concentrated within 15 to 35 degrees and-35 to-15 degrees, thereby realizing a biaxial emitting angle, and further realizing that the display device can see one picture display from the right oblique angle of the vertical line within 15 to 35 degrees and can see another picture display from the left oblique angle of the vertical line within-35 to-15 degrees.
Therefore, the utility model relates to a double-shaft emergent angle backlight module, through being provided with the inverse prism at the top of the first light guide plate, the light emitted by the first light source can be emitted according to a specific required angle after being refracted and emitted by the first light guide plate and the inverse prism in sequence, so that the emergent angle of the light is concentrated in the angle range; meanwhile, the second light guide plate is arranged at the bottom of the first light guide plate, light emitted by the second light source sequentially passes through the second light guide plate, the first light guide plate and the inverse prism to be refracted and emitted, and then can be emitted according to another specific required angle, so that the light emission angle is concentrated in the angle range, a double-axis emission angle is realized, one light source can be lightened or two light sources can be lightened by switching electric signals according to actual requirements, and further, the display device can be developed for watching pictures at a single oblique viewing angle or watching different pictures at double oblique viewing angles, convenience is brought to users, and the display device has a very good application prospect.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A dual-axis output-angle backlight module, comprising: the backlight module comprises a first light guide plate (1), a first light source (2) and a reverse prism (3), wherein the first light guide plate (1) is provided with a first light emitting surface (101), a first light guiding surface (102) and a first light incident surface (103) connected between the first light emitting surface (101) and the first light guiding surface (102), the first light source (2) is arranged on the first light incident surface (103); the inverse prism (3) is positioned at the top of the first light guide plate (1), the inverse prism (3) is provided with a prism light-emitting surface (301) and a plurality of arrayed prism units (302) opposite to the prism light-emitting surface (301), and the prism units (302) are arranged right opposite to the first light-emitting surface (101); the prism unit (302) has a first surface and a second surface on both sides, and an included angle formed between the first surface and the second surface is theta 1, and theta 1 is 50 DEG-60 deg.
2. A bi-axial exit angle backlight module according to claim 1, wherein: the first light guide surface (102) is provided with a first microstructure, the first microstructure is provided with a plurality of first inclined surfaces (1021) which are arranged, one ends, far away from the first light source (2), of the first inclined surfaces (1021) incline towards the first light emitting surface (101), and the extending direction of the first inclined surfaces (1021) is the same as that of the prism units (302).
3. A bi-axial exit angle backlight module according to claim 1, wherein: the first light emitting surface (101) is provided with a first lens array structure, and the first lens array structure is a plurality of arranged cylindrical or conical structures.
4. A bi-axial exit angle backlight module according to claim 1, wherein: the critical angle of total reflection of the first light guide plate (1) is theta 2, light emitted by the first light source (2) is refracted by the first light incident surface (103) to enter the first light guide plate (1) and is totally reflected in the first light guide plate (1) until the first incident angle of the light on the first light emitting surface (101) is smaller than or equal to theta 2, the light is refracted by the first light emitting surface (101) to be emitted, and then is refracted by the prism unit (302) of the inverse prism (3) and emitted by the prism light emitting surface (301) to form first light distribution, the first light distribution deflects towards the first light source (2), a vertical line perpendicular to the prism light emitting surface (301) is used as a reference, and the first light distribution has a first peak with a distribution angle of theta 3 not less than 15 degrees and not more than 35 degrees.
5. A bi-axial exit angle backlight module according to claim 1, wherein: the backlight module is characterized by further comprising a second light guide plate (4) and a second light source (5) which are located at the bottom of the first light guide plate (1), wherein the second light guide plate (4) is provided with a second light emitting surface (401) and a second light guide surface (402) which are opposite to each other, and a second light incident surface (403) connected between the second light emitting surface (401) and the second light guide surface (402), the second light emitting surface (401) is arranged opposite to the first light guide surface (102), the second light source (5) is arranged on the second light incident surface (403), and the first light source (2) and the second light source (5) are respectively located at two opposite side ends of the backlight module.
6. A bi-axial exit angle backlight module according to claim 5, wherein: the critical angle of the second light guide plate (4) for total reflection is theta 4, light emitted by the second light source (5) is refracted by the second light incident surface (403) and enters the second light guide plate (4), and totally reflecting in the second light guide plate (4) until the second incident angle of the light on the second light emitting surface (401) is less than or equal to theta 4, is refracted and emitted by the second light emitting surface (401), and is refracted by the prism units (302) of the first light guide plate (1) and the inverse prism (3) in sequence, a second light distribution is formed by the light emitting surface (301) of the prism, the second light distribution deflects towards the second light source (5), and the second light distribution has a second wave peak with a distribution angle theta 5 not more than-15 degrees and not more than-35 degrees by taking a vertical line vertical to the light-emitting surface (301) of the prism as a reference.
7. A bi-axial exit angle backlight module according to claim 5, wherein: the second light guide surface (402) is provided with a second microstructure, the second microstructure is provided with a plurality of second inclined surfaces (4021) which are arranged, and one end, far away from the second light source (5), of each second inclined surface (4021) inclines towards the second light emitting surface (401).
8. A bi-axial exit angle backlight module according to claim 7, wherein: the extending direction of the arrangement of the second inclined planes (4021) is the same as the extending direction of the arrangement of the prism units (302).
9. A bi-axial exit angle backlight module according to claim 5, wherein: and a second lens array structure is arranged on the second light emitting surface (401), and the second lens array structure is a plurality of arrayed cylindrical or conical structures.
10. A bi-axial exit angle backlight module according to claim 5, wherein: the light guide plate further comprises a reflecting sheet (6), and the reflecting sheet (6) is arranged on the second light guide surface (402).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120841789.9U CN214954193U (en) | 2021-04-23 | 2021-04-23 | Double-shaft emergent angle backlight module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120841789.9U CN214954193U (en) | 2021-04-23 | 2021-04-23 | Double-shaft emergent angle backlight module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156570A (en) * | 2021-04-23 | 2021-07-23 | 伟时电子股份有限公司 | Backlight module and display device |
| CN115373066A (en) * | 2022-08-25 | 2022-11-22 | 武汉华星光电技术有限公司 | Backlight module and display device |
| WO2023151087A1 (en) * | 2022-02-14 | 2023-08-17 | 京东方科技集团股份有限公司 | Backlight assembly and display apparatus |
-
2021
- 2021-04-23 CN CN202120841789.9U patent/CN214954193U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156570A (en) * | 2021-04-23 | 2021-07-23 | 伟时电子股份有限公司 | Backlight module and display device |
| WO2023151087A1 (en) * | 2022-02-14 | 2023-08-17 | 京东方科技集团股份有限公司 | Backlight assembly and display apparatus |
| US12189166B2 (en) | 2022-02-14 | 2025-01-07 | Beijing Boe Display Technology Co., Ltd. | Backlight assembly and display apparatus |
| CN115373066A (en) * | 2022-08-25 | 2022-11-22 | 武汉华星光电技术有限公司 | Backlight module and display device |
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